/*说明弹窗*/
.popbox{
	position:relative;
	width: 70%;
	margin:0 auto;
	/*margin-top:10%; 
	margin-bottom:10%; */
	text-align: center;
	background-color: #FFFFFF;
	z-index: 2;
	padding: 10px;
	color: black;
	border-radius: 8px;
}

.popbac{
	width: 100%;
	height: 100%;
	position: absolute;
	background: rgba(0,0,0,0.5);
	
	z-index: 2;
	top: 0;
	bottom: 0;
	right: 0px;
	left: 0px;
}

.flex {
	display: flex;
	display: -webkit-flex;
}
.v-center {
	align-items: center;
	-webkit-align-items: center;
}

.h-center {
	justify-content: center;
	-webkit-justify-content: center;
}